Francis was recording plant heights for an experiment. each time that she took a measurement, she wrote it down. then, she measured the plant again and compared the new measurement to the one that she had recorded in her notebook. what was she most likely trying to do?
1. revise her hypothesis
2. check her memory
3. make the data more valid
4. form a conclusion

What are two reasons for why a species might disappear from the fossil record?

An organ system consists of a group of organs that performs specific functions necessary for the survival of an organism. humans have eleven different organ systems: integumentary, skeletal, muscular, nervous, endocrine, circulatory, lymphatic, respiratory, digestive, urinary, and reproductive. discuss the function of neurons, the brain and the spinal cord within the human nervous system while explaining the interrelationship of each organ.

Which was most likely an effect on society that resulted from improvements in blood handling during world war i and world war ii?